(19)
(11) EP 1 191 214 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.06.2004 Bulletin 2004/26

(43) Date of publication A2:
27.03.2002 Bulletin 2002/13

(21) Application number: 01306749.1

(22) Date of filing: 07.08.2001
(51) International Patent Classification (IPC)7: F02K 1/38, F02K 1/40, F02K 1/46, F02K 1/82
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 31.08.2000 US 652180

(71) Applicant: GENERAL ELECTRIC COMPANY
Schenectady, NY 12345 (US)

(72) Inventors:
  • Janardan, Bangalore Ananthamur
    West Chester, Ohio 45069 (US)
  • Brausch, John Francis
    Clarksville, Ohio 45113 (US)

(74) Representative: Pedder, James Cuthbert 
London Patent Operation, General Electric International, Inc., 15 John Adam Street
London WC2N 6LU
London WC2N 6LU (GB)

   


(54) Exhaust nozzle with stub airfoils


(57) A gas turbine engine exhaust nozzle (18,22) includes an outlet (28,30) for discharging exhaust, and a plurality of circumferentially spaced apart stub airfoils (34) disposed adjacent the outlet. The airfoils shed vortices for mixing exhaust flow and attenuating noise and reducing infrared signature with minimum performance loss.






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